Valve for gas-generators



J. LEVEY.

VALVE FOR GAS GENERATO'HS.

APPLICATION FILED DEC. I0, I9I9. 124363,04?, Patented Dec. 21, 1920.

2 SHEETS-SHEET I.

9 7 7 Z 9 e E. n imoO 5 5 W 2 2 ...7, FU wm J. LEVEY.

VALVE FOR GAS GENERATORS.

APPLICATION FILED DECJ 10, 1919.

363047' Patented Dee. 21, 1920.

2 SHEETS-SHEET 2. Z4

4Z T if /6 nutren sraras ra'ranr orties.

JOHN LEVEY, 0F RIVERSIDE, ILLINOIS, ASSIGNOR T0 NATIONAL MACHINE WORKS,OF CHICAGO, ILLINOIS, A CGRIEORATION OF ILLINOIS.

'VALVE FOR GAS-GENIERATORS. 4

Specification of Letters Patent. Patented De@ 219 1920.

Application ilecilecember 10, 1919. Serial No. 343,972.

To all whom t may concern:

Be it known that l, JOHN LEVEY, a citizen of the United States, residingat Riverside, in the county of Cook and State of illinois, have inventeda. new and useful Improvement in Valves for Gas-Generators, of which thefollowing is a specification.

My invention relates to Valves, more especially tor gas generators, ofthe general type shown in United States Letters Patent No. 825,064granted to me von July 3, 1906, and involving a valve and a superposediue sec- "tion connected together for simultaneous movement by a liftingforce applied to the top of the flue section. It has been found inpractice that where the valves are relatively large structures, theoperation thereof as stated sometimes results in the permanentdistortion of the movable 'flue section to such a degree that it isimpaired for properly performing its function. Furthermore, as thesestructures have been hitherto provided, con` siderable diiliculty ispresented to the-ready inspection of the-movable flue section and itsrepair, removal, replacement or substitution.

My primary objects, generally stated, are to provide a construction ofvalve structure of the general type referred to which may be provided inlarge sizes and be readily actuated without danger of distorting themovable Hue section, and the internal parts ot which may be renderedquickly accessible for inspection or repair or 'removal forsubstitution.

Referring to the accompanying drawings :-Figure 1 is a vertical,sectional View of apparatus constructed in accordance with my invention,'the section being taken at the line 1-1 on Fig. 4 and viewed in thedirection of the arrows.

section and the upper end of the valve, showing these parts indisassembled relation. Fig. 3 is an enlarged, broken, section taken atthe line 3'on Fig. 1 and viewed in the vdirection of the arrows. Fig. 4is a section taken at the line 4-4 on Fig. 1 and viewed in the directionof the arrows, this view showing the valve and movable flue section inone position. Fig. 5 is a view like Fig. 4, showing the valve andmovable iiuemsection raised into another position. Fig. 6 is an edgelview of the valve structure; and Fig.

Fig. 2 is a similar view of the lower end of the movable flue 1, asection taken at the line 7 on Fig. 4 and viewed in the direction of thearrows.

lnasmueh as l have devised my improvethereof, and a common outlet l1leading to' the carbureter (not shown). The parts 9 and l1 form aninterrupted passageway, and as this passageway is in the present in?stance designed to lead directlyV from the upper part of the generatorinto the carbureter, these parts are lined with refractory materialrepresented at l2 'and 13. The

lopening 10 mayor may not beso lined. As

herein shown, it isl not provided with a lining.`

The passageway from the inlet 9 to the outlet 11 is formed by a movableflue section 14, shown as of metal, the aperture therein forming theHue, being also preferably provided withare-proof. lining 15 which,together with the ire-profing in the parts 9 and 11, forms a continuousfire-proof passageway for the gases or the like, affording completeprotection to the more or less destructible parts of the valveapparatus.

lin the particular arrangement shown, the movable flue 'section 14 is inthe 'form of an annulus provided at opposite sides with' outwardlyextending lugs 16 presenting beveled faces 17 adapted to engage theperipheries ot rollers 18 journaled on stub shafts 19 mounted inopposite' side walls of the valve casing 8, these rollers being solocated that when the .movable iiue section 14 is in the positionrepresented in Figs. 1 and 4, namely wherein it .forms a continuation ofthe passageway through the Hue sections 9 and 11, this flue section, byreason ot the Wedging action of the lugs 16 against the rollers 18, willbe forced at one end, its right hand end Ain Fig. 4, into rigid Contactwith the adjacent end of the flue passage i) so that a gas-tight-jointwill be produced therebetween. tion 14 is snperposed on, and supportedby, the valve proper 20 oi the apparatus, this rThe vertieally'movabletine secv ies valve being in the form of a circular disk operating whenin the position shown in Figs. 1 and 4 to close the inlet 10 to theoutlet 11, and when raised to the position shown in Fig. 5, to close theinlet 9 to the outlet 11 and permit communication between the latter andthe inlet 10. The flue section 14 is provided with adepending web 21provided at its opposite sides with pairs of lugs 22 spaced apartlengthwise of the web, at which web it rests upon the bottom of a socket23 provided on the upper end of the valve proper 20, this socketcontaining pairs of inwardly projecting'lugs 24 spaced apart lengthwiseof the socket a distance slightly greater than the length of the lugs22, the lugs 22 and 24 being of substantially the same length, thearrangement of the parts being such that when the movable flue section14 and the valve 2O are vertically y alined as shown in Fig. 1, the lugs22 will extend immediately below the lugs 24 and thus be in interlockedrelation therewith.

The simultaneous shifting of the movable. flue section 14 and the valve20 is accomplished through the medium of a lifting force applieddirectly to the valve 20, the means shown for. this purpose comprising alever 25 formed of a pair of parallel members 26 secured to theends of ashaft 2i i and carrying at their outer end counter- -weights 28, theshaft 2T being journaled in an extension 29 of the casing 8 and rigidlycarrying an arm 30 which is pivotally connected, through the medium 0f apin 31, with the lower end of `a link 32, the upper end kof this linkbeing pivotally connected by a pin 33 with the valve 20, thecounterweighting portion of the lever mechanism 25 being such that, bypreference, i\t will not accurately counter-balance the weight of themovable flue section and valve, but will substantially counter-balanceit, but under no condition of the structure will it operate to raise'the valve and movable lue section.

The valve 2() is provided on the face thereof opposite that at which itcloses against the seat controlling the inlet 10, with a lug 34presenting a wedge surface 35 adapted to coperate with a roller 36journaled on a shaft secured to a Wall of the valve casing 8,these'parts coperating to cause the valve 20 to closely fit against theseat referred to and produce a gas-tight-joint for closing the inlet l0in the position of the parts rep'- resented in Figs. 1 and 4.

lt may be stated that when the parts of the apparatus assume thepositions` lshown in Figs. 1 and 4, a direct passageway for the gases isprovided through the flue sections 12, 14 and 13, the inlet 10 beingedectually sealed. When the valve QOand movable flue section 14 areraised inthe vvalve casing 8 by pushing down on the outer end' of thelever 25 to raise these parts to the position shown in Fig. 5, the fluesections 12 and 13 are out of communication, andthe gases, as shown bythe arrows in Fig. 5, pass upwardly through the inlet 10 and out throughthe outlet 11. In the movement of the parts to the position shown inFig. 5 as described, the wedge surfaces 38 of the lugs 39 on the valve2O engage the rollers 18 and through such engagement force the valve 20into tight-joint-forming condition relative to the inlet 9 as shown inFig. 5.

The upper end or hood portion represented at 40 of the valve casing 8-isconnected with the portion which it superposes by any suitablereleasable means, as for example the bolts shown at 41, for the purposeof permitting the movable flue section 14 to be inspected and if desiredremoved,

the lugs 16 of the movable flue section 14 in the raised position ofthese internal mov- .tion in which the lugs 22 and 24 are out ofinterlocking position, thereby permitting the flue section 14 to belifted out ofthe valve casing for any desired purpose, as for examplerepair or substitution.

lt will be understood from the foregoing that inasmuch as the movableflue section 14 does not at any time support the weight of the valve, itmay be made of relatively light weightwithout danger of distortion.

Furthermore, the movable flue section 14 may be readily removed from thevalve casing as stated, it being noted that the struck ture is free ofoverhead parts required to be moved before the flue section iswithdrawable. This is of particular advantage in a gas-making apparatus,inasmuch as the movable iue section may be inspected, re.-A moved fromthe valve casing and replaced or one substituted therefor', in thel samelength of time required for the cleaning of the fires.

tion and adapted to be moved to a position in which it is interposedbetween said inlet and said outlet when said Hue section is removed fromits position between said inlet and outlet, and means for moving saidHue section and valve together constructed and arranged to permit saidmovable Hue section to be removed from the casing without removing saidmeans.

2. In valve apparatus, the -combination of a casing having an inlet portand an outlet,4 a movable Hue section forming a passageway between theinlet and outlet, and a movable valve carrying said movable Hue sectionand adapted to be moved to a position in which it is interposed betweensaid inlet and outlet when said Hue section is removed from its positionbetween said inlet and outlet.

3. In valve apparatus, the combination of a casing having an inlet portand an outlet, a movable Hue section forming a passageway between theinlet and outlet,,a movable valve carrying said movable Hue section andadapted to be moved to a position in which it is interposed between saidinlet and outlet when said Hue section is removed from its positionbetween said inlet and outlet, and means engaging said valve for movingthe latter and said movable Hue section to- Y gether.

4. Inv valve apparatus, the combination of a casing having an inlet portand an outlet, a movable Hue section forming a passageway between theinlet and outlet, a movable valve carrying said movable Hue section andadapted to be moved to a position in which it is interposed between saidinlet and outlet when said Huesection is removed from its positionbetween said inlet and outlet, and

`counter-weighted lever mechanism extendlet, a movable Hue sectionforming a passageway between the inlet and outlet, a movable valvecarrying said movable Hue section and adapted to be moved to a positionin which it is interposed between said inlet and outlet when said Huesection is re-y moved from its position between said inlet and outlet,and means affording an interlock between said valve and movable Huesection in one position of the latter, said Hue section being shiftableon said valve into a position in which it is' out of interlockingposition relative to said valve, permitting said Hue section to belifted from said valve.

6, ln valve apparatus, the combination of a casing having an inlet portand an outlet, a movable Hue section forming a passageway between theinlet and outlet, a movable valve carrying said movablel Hue sectiontvand adapted to be moved to a position in which it is interposed betweensaid inlet land outlet when said Hue section is removed from itsposition between said inlet and outlet, and means aHording an interlockbetween said valve and movable Hue section in one position of thelatter, said Hue section l being shiftable on said valve into a'positionin which it is out of interlocking position relative to said valve,permitting said Hue section to be lifted from said valve, the upper partof said casing being removable and when removed permitting of thelateral movement of said movable Hue section on said valve fordisconnecting these arts.

4 JOHN LE EY.

